Recently, I have come across an issue with the PSC’s not joining to the domain (They disconnected from the domain automatically) after upgrading the vCenter components (PSC01, PSC02 and vCenter windows server) from 6.0 Update 2 build 3634791 to 6.0 Update 2a build 4632154 or to 6.0 Update 3b build 5326079. This issue occurred as the windows domain controller was 2012 R2 and SMB 2 was the communication protocol to the domain controller. we have to enable SMB 2 on the PSC’s for them to communicate to the domain after the Upgrade.

here is the process to enable SMB2 on the PSC’s —

login to PSC01 and run the following command to check the values

/opt/likewise/bin/lwregshell list_values '[HKEY_THIS_MACHINE\Services\lwio\Parameters\Drivers\rdr]'

check the value of “Smb2Enabled”, this value will be 0, we will need to change it to 1 to enable it.

change SMB2 to be Enabled

/opt/likewise/bin/lwregshell set_value '[HKEY_THIS_MACHINE\Services\lwio\Parameters\Drivers\rdr]' Smb2Enabled 1

Once enabled, we need to restart the service lwio

/opt/likewise/bin/lwsm restart lwio

Check the values again —

/opt/likewise/bin/lwregshell list_values '[HKEY_THIS_MACHINE\Services\lwio\Parameters\Drivers\rdr]'

This time the value of “Smb2Enabled” will be 1.

This process is repeated for PSC02 as well and once this is done on both the PSC’s, you can go ahead and add the PSC’s to the domain and the function works !!

The process to change the SMB value on ESXi 6.0 is a little different and here are the commands —

Check values —

/usr/lib/vmware/likewise/bin/lwregshell list_values ‘[HKEY_THIS_MACHINE\Services\lwio\Parameters\Drivers\rdr]’

Change SMB2 to be enabled

/usr/lib/vmware/likewise/bin/lwregshell set_value ‘[HKEY_THIS_MACHINE\Services\lwio\Parameters\Drivers\rdr]’ SMB2Enabled 1

Restart lwio service

/usr/lib/vmware/likewise/bin/lwsm restart lwio